The RealSense D457 camera connected to the Orin NX with MAX96724 has no frame input

hello XuanZZZ,

it’ll enable pixel parser when deskew calibration has done.
in other words, if you see below, it’s VI engine to start waiting for camera frames.

[  146.899457] [RCE] nvcsi_stream_enable: enable pixel parser++ Line(3554)
[  146.899458] [RCE] nvcsi_stream_enable: enable pixel parser-- Line(3591)

the clock has divide by 2 since data is sent on both rising/falling edges of clock.
for instance, you given pixel clock as 1.5Gbps, so, the RCE reported clock rate is.. 1.5 Gbps / 2 = 750 MHz

however,
there’re lots of PHY interrupts, [RCE] ISR PHY 0 CIL_A 0xe000000 has reported.
you may refer to Orin TRM for CILA_INTR_0_STATUS_CILA_0 register description. it’s reported by bit-25,26,27 which usually due to DPHY deskew calibration did not complete, it happened when the calibration sequence length is not long enough.

hence..
please try to configure cil_settletime, and, please also review the serdes_pix_clk_hz settings.